The Hong Kong woman who allegedly abused Indonesian domestic maid Erwiana Sulistyaningsih and two other domestic helpers will face 13 new charges which were added on Tuesday.

The existing seven charges against Law Wan-tung were also amended by prosecutor Michael Wong.

The new charges include assault of Nurhasanah, another domestic helper formerly employed by Law, and criminal intimidation of Nurhasanah and Tutik Lestari Ningsih, who also worked for Law.

Ten counts of labour-related offences, including failing to pay wages to Erwiana and failing to grant holidays due, were also added.

The amended charges now include the more serious offences of inflicting grievous bodily harm on Erwiana and causing grievous harm with intent, as well as one count of common assault of Ningsih and a count of criminal intimidation.

The alleged offences involving Erwiana took place at Law’s home in Tseung Kwan O, while those involving Ningsih and Nurhasanah allegedly took place at Law’s former home in Mong Kok.

Law, 44, will face all 20 charges when her case is heard in the District Court on June 10.